Use For Intended Purpose; Electrical Connection And Operation; Extension Cable; Electronic Control - Festool HL 850 E Instruction Manual

1.5 Spindle stop
1.6 Interlock for cutting depth adjustment
1.7 Supplementary handle / cutting depth
adjustment
1.8 Parking device

Use for intended purpose

The HL 850 E planer together with the available
Festool accessories is designed for processing
wood, soft plastics and similar materials.
The user shall be liable for damages
and accidents due to incorrect use.
Electrical connec-
tion and operation
The supply voltage must comply with the voltage
given on the ratings plate.
The switch (1.2) is used as an on/off switch. For
your safety this is equipped with a switch-on
interlock (1.1 ). In order to run the planer the
switch-on interlock must fi rst be pressed and then
the switch.

Extension cable

If an extension cable is required, it must have a
suffi cient cross-section so as to prevent an exces-
sive drop in voltage or overheating. An excessive
drop in voltage reduces the output and can lead
to failure of the motor. The table shows the cor-
rect size to use, depending on cord length and
tool's ampere rating. Use only U.L. and CSA listed
extension cables. Never use two extension cables
together. Instead, use one long one.
Total Extension Cord
Lenght (feed)
Cord size (AWG)
Note: The lower the A.W.G. number, the stronger
the cable.

Electronic control

The devices are fi tted with a full-wave electronic
control with the following functions:
Smooth start-up
The electronically-controlled smooth start-up en-
sures that the machine starts without jolts.
Idling speed
The electronic circuit limits the idling speed. This
means that the noise level also remains low dur-
ing idling.
4
25 50 100 150
18 16 14 12
Constant speed
The speed of the planer shaft is electronically
regulated to a constant value, thus also providing
a constant cutting speed under load.
Temperature protection
Extreme overload in continuous running will cause
the motor to overheat. An electronic temperature
monitoring device is fi tted to provide protection
against overheating (burning-out of the motor).
The electronic safety device switches off the mo-
tor before a critical motor temperature is reached.
After a cooling period of approx. 3-5 minutes, the
machine is once again ready for use at full load. If
the machine is kept running (idling), the cooling
period is reduced.
Do not work with the planer if the electronic
control is defective, since this may lead to exces-
sive speeds. A defect in the electronic control is
indicated by the absence of a smooth run-up, a
higher noise level at idle or the fact that no speed
control is possible.

Machine settings

Always disconnect the plug from the
power supply before making any adjustments to
the machine or installing or removing any acces-
sory!

Chip thickness adjustment

2.3
+
After the interlock (2.2) has been released by
pushing it backward, the chip thickness can be
infi nitely adjusted between 0 mm and 3.5 mm by
turning the supplementary handle (2.3). The chip
thickness which has been set can be read in the
scale window (2.1). One division corresponds to
a chip removal of 0.1 mm.
If a constant chip thickness is to be set the inter-
lock must be pressed forward again after the chip
thickness has been adjusted. If the chip thickness
has to be varied during operation (fi tting work)
the interlock should be left open.
The supplementary handle can be turned beyond
the 0 mm mark to reach the P (= Park) position,
in which the spiral cutter is completely retracted.
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2.2 2.1